Rename `/reconnect now` -> `/reconnect`

[Privat33r-dev]

Current reconnect command is requiring to use now argument to actually initialize reconnect. At the same time, it performs no action. I can even go as far to suggest the following scheme: /reconnect - initialize reconnect /autoreconnect {secs} - set automatic reconnection time (more intuitive than reconnect, follows the analogy of autoconnect; it's automatic because no manual action is required from user to reconnect on connection loss)